122398340 has 24 divisors (see below), whose sum is σ = 262507392. Its totient is φ = 47917280.

The previous prime is 122398327. The next prime is 122398343. The reversal of 122398340 is 43893221.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 122398297 and 122398306.

It is not an unprimeable number, because it can be changed into a prime (122398343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64166 + ... + 66045.

It is an arithmetic number, because the mean of its divisors is an integer number (10937808).

Almost surely, 2^122398340 is an apocalyptic number.

122398340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122398340 is an abundant number, since it is smaller than the sum of its proper divisors (140109052).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122398340 is a wasteful number, since it uses less digits than its factorization.

122398340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130267 (or 130265 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 122398340 is about 11063.3783267138. The cubic root of 122398340 is about 496.5067715454.

The spelling of 122398340 in words is "one hundred twenty-two million, three hundred ninety-eight thousand, three hundred forty".